*{
    margin:0;padding: 0;
  }
  a{
    text-decoration: none;
    font-size: 14px;
    color:#999;
  }
  .reg-top{
    width: 1130px;
    height:68px;
    margin:auto;
  }
  .reg-top>img{
    float: left;
    margin-top:5px;
    margin-right: 15px;
  }
  .reg-top>div{
    float: left;
  }
  .reg-top>div>a:first-child{
    font-size: 30px;
    color:black
  }
  .reg-top>div>a:last-child{
    font-size: 14px;
    color:#999;
  }
  #body_center{
    background: #F4F7FF;
  }
  #body_width{
    width: 1130px;
    margin:auto;
    position: relative;
  }
  button{
    width:346px;height: 50px;
    background: #ff6700;
    border:none;
    font-size: 16px;
    color:#fff;
    border-radius: 5px;
  }
  .user-login{
    background:#fff;
    position: absolute;
    right:-100px;top:40px;
    text-align: center;
    width: 410px;height:500px;
  }
  .user-login>p{
    font-size: 24px;
    color:#ff6700;
    margin-top:15px;
  }
  .user-login a:hover{
    color:#ff6700;
  }
  input{
    width:346px;height:48px;
    margin:10px 0 10px;
  }
  ul{
    list-style: none;
    margin:20px 0 170px 30px;
  }
  ul>li{
    float: left;
  }
  ul>li:first-child{
    margin-right:90px;
  }
  ul>li:first-child>a{
    color:#ff6700;
  }
  body>div:nth-child(4){
    text-align: center;
  margin:30px 0 40px;
  }
  body>div:nth-child(4)>span{
    margin:0 15px 0;
  }
  .login-footer{
    text-align:center;
    margin:60px 0 50px 0;
  }